I purchased an Ad Package and posted all available listings. Can I delete a listing and replace it with another property?
No. You cannot replace it with another property. Your option is to purchase another Ad Package (or a Single Listing). Once a listing is used it cannot be replaced. Once a listing expires or is deleted, it cannot be replaced.
An expired listing can be renewed, but it will be considered as a new listing. If a listing expired and you already used up the number of ads in your package, then you'll need to purchase another package to renew that expired listing.